CAS number
CAS 80-54-6 2-(4-tert-butylbenzyl)propionaldehyde
CAS 80-54-6 · EC 201-289-8 · Index No 605-041-00-3
Where CAS 80-54-6 appears: every table entry that prints it among its identifiers, in the newest version of each act this record holds, and every recorded change to those entries. Many entries name a group of substances and print no number, so absence here is not absence from the law. Not legal advice.
Where it appears now
CLP Annex VI section 3, Index No 605-041-00-3
Last changed in the version in force , by Regulation (EU) 2020/1182, the act that change names · Annex VI on this site
| Index No | Chemical name | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors and ATEs | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazard Class and Category Code(s) | Hazard statement Code(s) | Pictogram, Signal Word Code(s) | Hazard statement Code(s) | Suppl. Hazard statement Code(s) | ||||||
| 605-041-00-3 | 2-(4-tert-butylbenzyl)propionaldehyde | 201-289-8 | 80-54-6 | Repr. 1B | H360Fd | GHS08 Dgr | H360Fd | |||
Cosmetics Regulation Annex II, Reference number 1666
Last changed in the version in force , by Regulation (EU) 2021/1902 and Regulation (EU) 2022/135, the acts that change names · Annex II on this site
| Reference number | Substance identification | ||
|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |
| a | b | c | d |
| 1666 | 2-(4-tert-butylbenzyl) propionaldehyde | 80-54-6 | 201-289-8 |
Cosmetics Regulation Annex III, Reference number 83
No change to this entry since the first version the record holds, in force 11 July 2013. · Annex III on this site
| Reference number | Substance identification | Restrictions | Wording of conditions of use and warnings | |||||
|---|---|---|---|---|---|---|---|---|
| Chemical name/INN | Name of Common Ingredients Glossary | CAS number | EC number | Product type, body parts | Maximum concentration in ready for use preparation | Other | ||
| a | b | c | d | e | f | g | h | i |
| 83 | 2-(4-tert-Butylbenzyl)propionaldehyde | Butylphenyl methylpropional | 80-54-6 | 201-289-8 | The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)(g) when its concentration exceeds: 0,001 % in leave-on products 0,01 % in rinse-off products | |||
Plant Protection Products Regulation Annex III, No 156
Last changed in the version in force , by Regulation (EU) 2026/1120, the act that change names · Annex III on this site
| No | Name | EC names/Other names | CAS number | EC number | Classification/Other properties |
|---|---|---|---|---|---|
| 156. | 2-(4-tert-butylbenzyl)propionaldehyde | 80-54-6 | 201-289-8 | Toxic to reproduction cat.1B |
REACH Annex XVII appendix 6, Index No 605-041-00-3
Last changed in the version in force , by Regulation (EU) 2021/2204, the act that change names · Annex XVII on this site
| Substances | Index No | EC No | CAS No | Notes |
|---|---|---|---|---|
| 2-(4-tert-butylbenzyl)propionaldehyde | 605-041-00-3 | 201-289-8 | 80-54-6 |
Look up a number
Type a CAS or EC number, with or without its hyphens, or an Index No into the search box at the top of the page: it reads 50000 as CAS 50-00-0. Every number is also listed by act on the substances page.
Its history
· added · Plant Protection Products Regulation Annex III, No 156
Recorded in the version in force , by Regulation (EU) 2026/1120, the act that change names. The change on its version page
| Identifiers | No | Name | EC names/Other names | CAS number | EC number | Classification/Other properties |
|---|---|---|---|---|---|---|
| No 156CAS 80-54-6EC 201-289-8 | 156. | 2-(4-tert-butylbenzyl)propionaldehyde | 80-54-6 | 201-289-8 | Toxic to reproduction cat.1B |
· added · CLP Annex VI section 3, Index No 605-041-00-3
Recorded in the version in force , by Regulation (EU) 2020/1182, the act that change names. The change on its version page
| Identifiers | Index No | Chemical name | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors and ATEs | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hazard Class and Category Code(s) | Hazard statement Code(s) | Pictogram, Signal Word Code(s) | Hazard statement Code(s) | Suppl. Hazard statement Code(s) | |||||||
| Index No 605-041-00-3CAS 80-54-6EC 201-289-8 | 605-041-00-3 | 2-(4-tert-butylbenzyl)propionaldehyde | 201-289-8 | 80-54-6 | Repr. 1B | H360Fd | GHS08 Dgr | H360Fd | |||
· added · Cosmetics Regulation Annex II, Reference number 1666
Recorded in the version in force , by Regulation (EU) 2021/1902 and Regulation (EU) 2022/135, the acts that change names. The change on its version page
| Identifiers | Reference number | Substance identification | ||
|---|---|---|---|---|
| Chemical name/INN | CAS number | EC number | ||
| a | b | c | d | |
| Reference number 1666CAS 80-54-6EC 201-289-8 | 1666 | 2-(4-tert-butylbenzyl) propionaldehyde | 80-54-6 | 201-289-8 |
· added · REACH Annex XVII appendix 6, Index No 605-041-00-3
Recorded in the version in force , by Regulation (EU) 2021/2204, the act that change names. The change on its version page
| Identifiers | Substances | Index No | EC No | CAS No | Notes |
|---|---|---|---|---|---|
| Index No 605-041-00-3CAS 80-54-6EC 201-289-8 | 2-(4-tert-butylbenzyl)propionaldehyde | 605-041-00-3 | 201-289-8 | 80-54-6 |
Sources
- CLP: every version the record holds; rows read from EUR-Lex consolidated version 02008R1272-20270101, in force 1 January 2027 (external, EUR-Lex)
- Cosmetics Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1223-20260518, in force 18 May 2026 (external, EUR-Lex)
- Plant Protection Products Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1107-20260616, in force 16 June 2026 (external, EUR-Lex)
- REACH: every version the record holds; rows read from EUR-Lex consolidated version 02006R1907-20260622, detected 11 September 2026 (external, EUR-Lex)